Support group-local extrapolation in the MIDI mapping editor.

[nageru] / midi_mapping_dialog.h

diff --git a/midi_mapping_dialog.h b/midi_mapping_dialog.h
index efc770d28a1cc81433bd73cda828acd2e138062e..df4e97f3c066b4cad0365d9d157b145bede6902b 100644 (file)
--- a/midi_mapping_dialog.h
+++ b/midi_mapping_dialog.h
@@ -61,7 +61,7 @@ public:
        void note_on(unsigned note) override;
 
 public slots:
-       void guess_clicked();
+       void guess_clicked(bool limit_to_group);
        void ok_clicked();
        void cancel_clicked();
        void save_clicked();
@@ -70,29 +70,44 @@ public slots:
 private:
        static constexpr unsigned num_buses = 8;
 
+       // Each spinner belongs to exactly one group, corresponding to the
+       // subheadings in the UI. This is so that we can extrapolate data
+       // across only single groups if need be.
+       enum class SpinnerGroup {
+               ALL_GROUPS = -1,
+               PER_BUS_CONTROLLERS,
+               PER_BUS_BUTTONS,
+               GLOBAL_CONTROLLERS,
+               GLOBAL_BUTTONS
+       };
+
        void add_bank_selector(QTreeWidgetItem *item, const MIDIMappingProto &mapping_proto, int bank_field_number);
        
        enum class ControlType { CONTROLLER, BUTTON };
        void add_controls(const std::string &heading, ControlType control_type,
+                         SpinnerGroup spinner_group,
                          const MIDIMappingProto &mapping_proto, const std::vector<Control> &controls);
        void fill_controls_from_mapping(const MIDIMappingProto &mapping_proto);
 
        // Tries to find a source bus and an offset to it that would give
        // a consistent offset for the rest of the mappings in this bus.
-       // Returns -1 for the bus (the first element) if no consistent offset
-       // can be found.
-       std::pair<int, int> guess_offset(unsigned bus_idx);
-       bool bus_is_empty(unsigned bus_idx);
+       // Returns -1 for the bus if no consistent offset can be found.
+       std::pair<int, int> guess_offset(unsigned bus_idx, SpinnerGroup spinner_group);
+       bool bus_is_empty(unsigned bus_idx, SpinnerGroup spinner_group);
 
        void update_guess_button_state();
-       int find_focus_bus();
+       struct FocusInfo {
+               int bus_idx;  // -1 for none.
+               SpinnerGroup spinner_group;
+       };
+       FocusInfo find_focus() const;
 
        std::unique_ptr<MIDIMappingProto> construct_mapping_proto_from_ui();
 
        Ui::MIDIMappingDialog *ui;
        MIDIMapper *mapper;
        ControllerReceiver *old_receiver;
-       int last_focus_bus_idx{-1};
+       FocusInfo last_focus{-1, SpinnerGroup::ALL_GROUPS};
 
        // All controllers actually laid out on the grid (we need to store them
        // so that we can move values back and forth between the controls and
@@ -100,6 +115,7 @@ private:
        struct InstantiatedSpinner {
                QSpinBox *spinner;
                unsigned bus_idx;
+               SpinnerGroup spinner_group;
                int field_number;  // In MIDIMappingBusProto.
        };
        struct InstantiatedComboBox {
@@ -111,7 +127,11 @@ private:
        std::vector<InstantiatedComboBox> bank_combo_boxes;
 
        // Keyed on bus index, then field number.
-       std::map<unsigned, std::map<unsigned, QSpinBox *>> spinners;
+       struct SpinnerAndGroup {
+               QSpinBox *spinner;
+               SpinnerGroup group;
+       };
+       std::map<unsigned, std::map<unsigned, SpinnerAndGroup>> spinners;
 };
 
 #endif  // !defined(_MIDI_MAPPING_DIALOG_H)